static void
ui_check_options_and_arguments(struct cropparams *p)
{
/* Make sure we actually have inputs. */
if(p->inputs==NULL)
error(EXIT_FAILURE, 0, "no input file given");
/* Make sure that a HDU is also given. */
if(p->cp.hdu==NULL )
error(EXIT_FAILURE, 0, "no HDU specified. When the input is a FITS "
"file, a HDU must also be specified, you can use the `--hdu' "
"(`-h') option and give it the HDU number (starting from "
"zero), extension name, or anything acceptable by CFITSIO");
/* If in image mode, there should only be one input image. */
if(p->mode==IMGCROP_MODE_IMG && p->numin>1)
error(EXIT_FAILURE, 0, "in image mode, only one input image may be "
"specified");
/* If no output name is given, set it to the current directory. */
if(p->cp.output==NULL)
gal_checkset_allocate_copy("./", &p->cp.output);
/* Only catalog mode needs multiple threads and a directory for the
output. */
if(p->catname)
{
/* When multiple threads need to access a file, CFITSIO needs to be
configured with the `--enable-reentrant` option. */
if(p->cp.numthreads>1 && fits_is_reentrant()==0)
error(EXIT_FAILURE, 0, "CFITSIO was not configured with the "
"`--enable-reentrant` option but you have asked to crop "
"on %zu threads.\n\nPlease configure, make and install CFITSIO "
"again with this flag. Alternatively, to avoid this error "
"you can set the number of threads to 1 by adding the "
"`--numthreads=1` or `-N1` options. Please run the following "
"command to learn more about configuring CFITSIO:\n\n"
" $ info gnuastro CFITSIO", p->cp.numthreads);
/* Make sure the given output is a directory. */
gal_checkset_check_dir_write_add_slash(&p->cp.output);
}
else
{
p->cp.numthreads=1;
p->outnameisfile=gal_checkset_dir_0_file_1(p->cp.output,
p->cp.dontdelete);
}
}
void cfitsio_unlock()
{
if(!fits_is_reentrant())
pthread_mutex_unlock(&cfitsio_mutex);
}
